期刊
ACS NANO
卷 6, 期 1, 页码 227-233出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn203430m
关键词
stimulus-responsive materials; drug delivery; conductive nanoparticles; polypyrrole; controlled release
类别
资金
- National Defense Science and Engineering Graduate Research Fellowship
- National Science Foundation [CBET-0827806]
- American Heart Association [11IRG5450017]
- Stanford School of Medicine
- NIBIB [1R21EB012155-01A1]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [827806] Funding Source: National Science Foundation
We describe a new temperature and electric field dual-stimulus responsive nanoparticle system for programmed drug delivery. Nanoparticles of a conducting polymer (polypyrrole) are loaded with therapeutic pharmaceuticals and are subcutaneously localized in vivo with the assistance of a temperature-sensitive hydrogel (PLGA-PEG-PLGA). We have shown that drug release from the conductive nanoparticles is controlled by the application of a weak, external DC electric field. This approach represents a novel interactive drug delivery system that can show an externally tailored release profile with an excellent spatial, temporal, and dosage control.
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